The American people were strongly independent, they wanted to do things for themselves. Great Britain was a long way away. The American people didn't want people an ocean away telling them how to live there lives. The British Govermentdecided to make the American colonies pay a large share of the debt from the French and Indian War.
Throught the sugar act, stamp act, and other taxes, the British tried to collect taxes that the American people considred harsh. The american people also thought that they should be able to send their own people to Britis Parliament or at least mvote for Britain lawmakers.